ID   G6PI_CHLCV              Reviewed;         527 AA.
AC   Q822E7;
DT   25-JUL-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 102.
DE   RecName: Full=Glucose-6-phosphate isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=GPI {ECO:0000255|HAMAP-Rule:MF_00473};
DE            EC=5.3.1.9 {ECO:0000255|HAMAP-Rule:MF_00473};
DE   AltName: Full=Phosphoglucose isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=PGI {ECO:0000255|HAMAP-Rule:MF_00473};
DE   AltName: Full=Phosphohexose isomerase {ECO:0000255|HAMAP-Rule:MF_00473};
DE            Short=PHI {ECO:0000255|HAMAP-Rule:MF_00473};
GN   Name=pgi {ECO:0000255|HAMAP-Rule:MF_00473}; OrderedLocusNames=CCA_00736;
OS   Chlamydia caviae (strain ATCC VR-813 / DSM 19441 / 03DC25 / GPIC)
OS   (Chlamydophila caviae).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=227941;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-813 / DSM 19441 / 03DC25 / GPIC;
RX   PubMed=12682364; DOI=10.1093/nar/gkg321;
RA   Read T.D., Myers G.S.A., Brunham R.C., Nelson W.C., Paulsen I.T.,
RA   Heidelberg J.F., Holtzapple E.K., Khouri H.M., Federova N.B., Carty H.A.,
RA   Umayam L.A., Haft D.H., Peterson J.D., Beanan M.J., White O.,
RA   Salzberg S.L., Hsia R.-C., McClarty G., Rank R.G., Bavoil P.M.,
RA   Fraser C.M.;
RT   "Genome sequence of Chlamydophila caviae (Chlamydia psittaci GPIC):
RT   examining the role of niche-specific genes in the evolution of the
RT   Chlamydiaceae.";
RL   Nucleic Acids Res. 31:2134-2147(2003).
CC   -!- FUNCTION: Catalyzes the reversible isomerization of glucose-6-phosphate
CC       to fructose-6-phosphate. {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- CATALYTIC ACTIVITY:
CC       Reaction=alpha-D-glucose 6-phosphate = beta-D-fructose 6-phosphate;
CC         Xref=Rhea:RHEA:11816, ChEBI:CHEBI:57634, ChEBI:CHEBI:58225;
CC         EC=5.3.1.9; Evidence={ECO:0000255|HAMAP-Rule:MF_00473};
CC   -!- PATHWAY: Carbohydrate biosynthesis; gluconeogenesis.
CC       {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- PATHWAY: Carbohydrate degradation; glycolysis; D-glyceraldehyde 3-
CC       phosphate and glycerone phosphate from D-glucose: step 2/4.
CC       {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00473}.
CC   -!- SIMILARITY: Belongs to the GPI family. {ECO:0000255|HAMAP-
CC       Rule:MF_00473}.
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DR   EMBL; AE015925; AAP05477.1; -; Genomic_DNA.
DR   RefSeq; WP_011006691.1; NC_003361.3.
DR   AlphaFoldDB; Q822E7; -.
DR   SMR; Q822E7; -.
DR   STRING; 227941.CCA_00736; -.
DR   EnsemblBacteria; AAP05477; AAP05477; CCA_00736.
DR   KEGG; cca:CCA_00736; -.
DR   eggNOG; COG0166; Bacteria.
DR   HOGENOM; CLU_017947_3_1_0; -.
DR   OMA; IGVWYIN; -.
DR   OrthoDB; 417261at2; -.
DR   UniPathway; UPA00109; UER00181.
DR   UniPathway; UPA00138; -.
DR   Proteomes; UP000002193; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0097367; F:carbohydrate derivative binding; IEA:InterPro.
DR   GO; GO:0004347; F:glucose-6-phosphate isomerase activity; IEA:UniProtKB-UniRule.
DR   GO; GO:0006094; P:gluconeogenesis; IEA:UniProtKB-UniRule.
DR   GO; GO:0006096; P:glycolytic process; IEA:UniProtKB-UniRule.
DR   CDD; cd05015; SIS_PGI_1; 1.
DR   CDD; cd05016; SIS_PGI_2; 1.
DR   Gene3D; 1.10.1390.10; -; 1.
DR   HAMAP; MF_00473; G6P_isomerase; 1.
DR   InterPro; IPR001672; G6P_Isomerase.
DR   InterPro; IPR023096; G6P_Isomerase_C.
DR   InterPro; IPR018189; Phosphoglucose_isomerase_CS.
DR   InterPro; IPR046348; SIS_dom_sf.
DR   InterPro; IPR035476; SIS_PGI_1.
DR   InterPro; IPR035482; SIS_PGI_2.
DR   PANTHER; PTHR11469; PTHR11469; 1.
DR   Pfam; PF00342; PGI; 1.
DR   PRINTS; PR00662; G6PISOMERASE.
DR   SUPFAM; SSF53697; SSF53697; 1.
DR   PROSITE; PS00765; P_GLUCOSE_ISOMERASE_1; 1.
DR   PROSITE; PS00174; P_GLUCOSE_ISOMERASE_2; 1.
DR   PROSITE; PS51463; P_GLUCOSE_ISOMERASE_3; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Gluconeogenesis; Glycolysis; Isomerase.
FT   CHAIN           1..527
FT                   /note="Glucose-6-phosphate isomerase"
FT                   /id="PRO_0000180622"
FT   ACT_SITE        347
FT                   /note="Proton donor"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        378
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
FT   ACT_SITE        493
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00473"
SQ   SEQUENCE   527 AA;  57881 MW;  405C5DE6F5083469 CRC64;
     MNKKGFLDSS STKILQDLAV APIDLTAPGV ISKERIERFS LSVEGFTLSY ATERVDEGIL
     SALEDLASER GLIESMQAMQ NGEVVNYIEN FPSESRPALH TATRAWVKES PLQGNAEDIS
     LRSKIEAQRL KDFLNRYRDV FTTIVQIGIG GSELGPKALH WALKGCCPSD KKVYFVSNVD
     PDNAAEVLQE IDCAKTLVVT VSKSGTTLET AVNEELLADH FLKQGLHFQD HFIAVTCEGS
     PMDDTSKYLE VFHIWDSIGG RYSSTSMVGG VVLGFAYGFD VFLQLLEGAA SMDLAALEPR
     MSENLPLLSA MLGIWNRNFL RYPTSAVVPY ATGLEYFPAH LQQCGMESNG KSVAQTGEVI
     GFATSPILWG EVGTNSQHSF FQCLHQGSDI VPIEFIGFQE NQRGKDIVIA GSSSSQKLFA
     NMVAQSIALA KGRENTNPNK NFRGNRPSSL LVSERLTPYT MGALLAFYEH KIVFQGFCWG
     INSFDQEGVT LGKDLANQVL QVMQGQEKEG ALLEAEALLR LFNNIKK